Ments



Reissued Jan. 7, 1930 UNITED STATES' P A'rlezla'rl OFFICE 1 BAWSON P. DICKERSON, 0F EAST OBAN GE, NEW JRSEY, ASSIGNOR, BY HESNE ASSIGN- MENTS, TO UNITED STATES ENVELOPECOMPANY, F WORCESTER, MASSACHUSETTS,

A CORPORATION 0F MAINE PAPER cur Original No. 1,687,716, dated October 16', 1928, SerialA No. 741,106, tiled (lctober 2, 1'924. lApplication for reissue tiled January 19, 1928. Serial No. 338,687.

The invention relates to avpaper cup in-Yy A combining the advantagesof both.

Incarrying out theI invention, there is pro-n duced froma sin le sector-like paper blank a naturally-disten ed cup Without folds or creasesin its side walls, but the bottom of this cup instead of tapering uniformly to a shar polnt, or apex, likethe unfolded self-exten ed conical paper cups heretofore produced takes the form of a straight line or edge ofV considerable length, the same being produced 'by folding up several thicknesses of material at the narrowed end of the rolled blank; in

otherI words, the bottom of my improved cup is formed similarly'to the bottoms in the flat folded sector-shaped cups which have been heretofore produced. In conse uence of this construction, the-cu produced y my invenf tion is easil han ed since it does not require dlsten inv, as do the flat cups, and 1t 1s easily held at t e bottom between thev fingers without exhibting any tendency to elevate itfself when pressure is applied, as do the above described conical cups. v A- The invention has for a further object a v cup which may be conveniently stacked, as by nesting a pluralityof cups; and lwhich shall be of such shape, moreover, that dispensing of individual cups may readily be e'ected as by 4a suitable cup dispensing machine, in manthe invention consists in the ner well understood. A still furher object of provision of a cup whichv will allow of forcing out of the contents, such as fruit ices,y etc., thru squeezing the body of the cup, or by rolling up the same from the bottom, the remaining portion of the cup meanwhile-retaining generally its form.

The nature of the invention, however, will piece o f the paper material, which cupV best beunderstood when described in connec- .t-ion with the accompanying drawings, in. whichy Fig. l is a perspective view of the novelcup.

Fig. 2 is a front elevation, and Fig. 3 is a side elevation thereof.

Fig. 4 is a plan view.

Fig. 5 is a plan of the blank from which the cup is formed up Referring-to the drawings, Fi 5 thereof illustrates the blank from which t e cup is to be formed, and consists of a sector having the Vupper arc 1() and radial sides 11 and l2. The

bottom of the sectoris partly cut awa and the blank at the bottom is bounded by the edges 13 and 14, which may be arcs arranged substantially at right angles to the respective radial sides l1 and 12, and by an intermediate tab 15 extending outwardly from the bottom ofA the blank with its. axis substantially coinciding with the medial radius of the sector.

i In forming the cup from this blank, the sides 11 and 12 are caused to overlap,'as by rolling or curlin the blank as indicated in Figs. 1 and 2, an to be secured to each other by a suitable adhesive in manner such that the union is substantiallyinidway of the tab 15. The bottom edges 13 and 14 will thus be in juxtaposition andthe seam therebetween is sealed by turning over slightlythe said edges as along the dotted lines a, b, c, d, toa'iord the usual safety fold. In formingthe fold along the lines a, b, c, d,suflicient pressure i's applied to the overlapped sides 11 and12 above the tab 15 to flatten the edges 13 and- 14 and the tab 15 into a single'common plane, without foldin or creasing the sides of the funnel-like bo y above' the flattened zone.

After this, the flattened portion is folded over transversely along the lines a, b, 6,11 to bring the flattenedtab 15v into engagement Awith the cup body to which it is secured by adhesive to complete the watertight closure of the cup bottom. Various forms of tabs may be employed, of course, land I do not wish to e restricted to the particular shape of tab shown; also, when not required, the safety fold may be omitted and merely the` tab employed for the sealing. c

`The above described operation of' flattenf ing, folding upland adhesively securing the ,f for cup material, to provide a watertight bottom closure, completes for all practical purposes the cup of my invention; by said operation the cup is made to assume a wedge-like form, of gradually decreasing elliptical cross section'ytoward its bottom, the ellipse Sections becoming Hatter and flatter as the bottomis approached. As a further refinement, the cup of my invention may be lmproved by spinning or rolling over its upper edge 1,0 to

provide a bead 16 or rolled-over` rim which not only insures aga-inst `a sharp edge, when the cup is presented `to the lips in use, but serves more especially to maintain the rounded naturally distended form of the cup body with the mouth piece substantially circular, as shown, the 1oody being more or less conical in tapering both ways toward the flattened bottom'. This cup, moreover, is of a, shape best suited for convenient and` natural holding by the hand while providing ample rigidity,`and it does not have the tendency to slide out of ones hand as is the case with a `purely conical cup. The cupsV of my invention are readily susceptible of being closely nested, one within the other, in stack form, acking and for easy distribution from a ca inet or container; ,their removal, one by one, from the bottom of a stack, or from the top of an inverted stack, is a particularly convenient op/eration, due to the facility of seizure by the fingers which is afforded by the wedge-shaped lower portion of each cup. l Furthermore, the beading 16 provides for a rim of sufficient rigidity to allo'w of assistf ance in the forcible introduction into the cup of materials such as ice cream, fruit ices and the like. The rim is also of sufiicient rigidity to enable the cupto resist collapse underthe weight of the contents and will maintain under all conditionsl likely to-be met with the circular or elliptical shape of the mouth piece and the generally rounded for-m of the body, notwithstanding the sharp bottom termination of the base. The cup, also, is of yconsiderable depth and for thev amount of material employed in its construction is of relatively large capacity. The construction, moreover, obviates against any dropping out of the bottom as in the case of a two-piece cup and eliminates the fiu'ting required in the constructionof a one-prece tumbler type of cup.

I claim:

l. As a new article ofmanufacture, a paper drinking cup whose body presents a substantially rounded self-extended mouth, said body of naturally-distended open form being of decreasing elliptical cross-section. toward its lower end and terminating in a watertight bottom closure made by a` substantially `straight line fold-up of the cup material secured to the body wall, the line of fold of said fold-up being substantially parallel to the major axes of said elliptical sections, and

paper drinking cup having its bodyA portion,

terminating in a self-extended substantially rounded mouth, said body of naturally-distended open form tapering from its mouth in wedge-like form to a watertight bottom closure made by a straight edge transverse fold-up of the cup material securedV to the body wall, the line of fold of said fold-up being of sufficient length to throw substantially the entire body portion into elliptical section. y

3. As a new article of manufacture, a paper drinking cup having its body portion in selfextended substantially rounded form, said body from its open mouth tapering i'wedgelike form to a watertight bottom closure made by a straight'edge transverse fold-up of the cup material secured to the body wall, the line f length to provide a base for resting the cup against a finger of the user, when held in filling position in his hand. Y

4. As a new article of manufacture, a paper drinking cup having a naturally-open selfeXtended body, `said body from the open mouth thereof being of decreasing elliptical cross section toward its lower end and terminating in a watertight bottom closure made by a substantially straight line fold-up of the cup materialsecured to the body wall, the line of fold of said fold-up being of suf-licient length to afford a finger grip for the seizure of the cup by its lower end, and the minor axes of said elliptical sections decreasing at a faster rate than the major axes thereof, whereby the section ofthe cup body, at the self-extended mouthand a downwartlytapered rounded body terminating in a wedge-shaped bottom closed by a tab integral Wit-h the.body material, said mouth having a beaded rim to maintain the shape of said body.Y f

RAWSON P. DICKERSON. 

